I too have been seeing a chiro and I was very hesitant to do so at first but oh my goodness, what a god send. It hasn't erased all discomfort but it has certainly eased it a huge amount. Ask around there might be a good one in your area that friends or family can recommend you to that specializes in pg women and children etc..
I am now 33 weeks and have been seeing him since early Nov I think and am much more comfortable now.
Nets xx